Finding the Fourth Proportional to 99,563.42, 137,397.48 and 54,851.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99,563.42 : 137,397.48 = 54,851.42 : x
2. Step 2: Convert to fraction form
   99,563.42/137,397.48 = 54,851.42/x
3. Step 3: Cross multiply
   99,563.42x = 137,397.48 × 54,851.42
4. Step 4: Simplify right side
   99,563.42x = 7,536,446,882.42
5. Step 5: Solve for x
   x = 7,536,446,882.42/99,563.42
6. Step 6: Final answer
   x = 75,694.94